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ONLYOFFICE, the best MS Office Online alternative

100% compatible with Microsoft Office formats

4 reasons why ONLYOFFICE is the best Microsoft Office alternative

Best support for MS Office files
Using Office Open XML as a core format ONLYOFFICE provides the highest compatibility with Microsoft Office formats: DOCX, XLSX and PPTX.
Complete office suite
ONLYOFFICE includes word processor, spreadsheet editor and presentation software, providing alternatives to Word, Excel and PowerPoint. Integrated with a collaboration platform, it offers a toolset for document, mail and project management.
Feature-rich productivity software
ONLYOFFICE offers users a complete set of formatting and collaborative tools available online. Share and work on all kinds of Office documents collaboratively with your colleagues. Free desktop and mobile apps are also available.
Self-hosted and open source
ONLYOFFICE web-based software can be deployed on your own server providing you with a full control over your business data. The source code of the online office suite is listed on GitHub that ensures its transparency and reliability.

Watch this presentation to see the difference between office suites:

Take a look at this article for an in-depth comparison of features available in MS Office Online and ONLYOFFICE

Top 11 Awesome ONLYOFFICE Features that Google Docs and MS Office Online don't have
We compared ONLYOFFICE Document Editors to our main rivals – Google Docs and MS Word Online. And here’s the result of our little research. Read more...

Check out the compatibility with MS Office formats

We have saved the docx file created by Microsoft in PDF with different other suites. Here's the result.

Still not convinced? Compare the editors yourself!

Download the docx filedocx file and xlsx files and try to edit ititthem using MS Word Online, Google Docs, Zoho Docs, Collabora Online, LibreOffice/OpenOffice and ONLYOFFICE.
Read instruction how to compare editors